The hamlet is next to the Flanders Moss National Nature Reserve and close to the east boundary of the Loch Lomond and Trossachs National Park, which includes the Lake of Menteith.

Walter Comyn, the Earl of Menteith, founded Inchmahome Priory in 1238 and it is thought the name of the hamlet could date from then.

There are other ‘Arns’ in the area, some of which indicate size (e.g. Arnmore) and others indicate previous owners (e.g. Arnfinlay).

The town of Arnprior, Ontario, Canada was named after the hamlet, the ancestral home of its founder Archibald McNab.

The notable commerce of the hamlet is provided by Arnprior Farm, which in 2015, as part of a diversification programme, established what it claims to be "Scotland's original and best pumpkin patch".